TY  - JOUR
AU  - Kaliappan, E. 
AU  - Chellamuthu, C. 
PY  - 2012
TI  - Simplified Modeling, Analysis and Simulation of Permanent Magnet Brushless Direct Current Motors for Sensorless Operation
JF  - American Journal of Applied Sciences
VL  - 9
IS  - 7
DO  - 10.3844/ajassp.2012.1046.1054
UR  - https://thescipub.com/abstract/ajassp.2012.1046.1054
AB  - Problem statement: In this study, a simplified modeling and experimental analysis  of Permanent Magnet Brushless DC (PMBLDC) motors  for Sensorless operation using MATLAB/SIMULINK. This model provides a mechanism for monitoring and controlling the voltage, current, speed and torque response. Approach: BLDC motor is modeled as sub-blocks. The inverter and switching function are implemented as S-function builder block. The Sensorless scheme employs direct back emf  based zero crossing detection technique. Results: The proposed model with Sensorless control technique with back emf zero crossing detection  is tested in the BLDC Motor and the performance was evaluated. The simulated and experimental results show that the proposed modeling works quite well during starting and running conditions. Conclusion/Recommendation: The developed model consists of several independent sub-blocks, that can be used in the modeling of Permanent Magnet Sinusoidal Motor and induction motor. Hence the developed simulation model is a design tool to study the dynamic behavior of Sensorless Controlled Brushless DC Motor.